Church Hill, MD (21623): 1 Health-Based Violation Recorded for Mapped Water Systems
EPA data for Town of Centreville
Health-based violation records by water system:
EPA records for the water systems mapped to 21623 in Church Hill, MD contain 5 recorded violations for inclusive record years 2021 through 2026, all mapped systems combined; 1 are marked health-based.
Data source: U.S. Environmental Protection Agency (EPA) SDWIS
At a Glance
- Water EPA records for water systems mapped to this ZIP show 1 health-based violation and 4 non-health-based (since 2021).
- Lead The reported 90th-percentile lead result of 0.005 mg/L is below the EPA action level, but EPA's health goal for lead is zero; filtration is advisable.
- Radon EPA Zone 3 - county-level radon potential, not evidence of a low home result.
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Score Breakdown
Overall Home Safety Score: Score unavailable
Required evidence is missing. Missing values remain unknown and are not imputed or renormalized.
Canonical components
Required domains
Coverage: 2 of 4 components and 1 of 3 domains observed.
Model 4.0.0; series home-safety-v4-cross-vertical.
Safety & Health (7) CRITICAL
Your Water System
ZIP code 21623 in Church Hill, Maryland is mapped to the water system Town of Centreville (EPA ID: MD0170001). This system provides water to approximately 3,322 people from groundwater sources.
Other Water Quality Reports in Maryland
- 20588 (Dhs)
- 20601 (Waldorf) - 3 violations recorded for mapped water systems
- 20602 (Waldorf) - 3 violations recorded for mapped water systems
- 20603 (Waldorf) - 3 violations recorded for mapped water systems
- 20604 (Waldorf)
- 20606 (Abell)
- 20607 (Accokeek) - 3 violations recorded for mapped water systems
- 20608 (Aquasco)
- 20609 (Avenue)
- 20610 (Barstow)
- 20611 (Bel Alton) - 3 violations recorded for mapped water systems
- 20612 (Benedict)
- 20613 (Brandywine) - 2 violations recorded for mapped water systems
- 20615 (Broomes Island)
- 20616 (Bryans Road) - 1 violation recorded for mapped water systems
- 20617 (Bryantown)
- 20618 (Bushwood)
- 20619 (California) - 12 violations recorded for mapped water systems
- 20620 (Callaway) - 1 violation recorded for mapped water systems
- 20621 (Chaptico) - 4 violations recorded for mapped water systems
Nearby Water Quality Reports
- 21644 (Ingleside) - 6 mi
- 21620 (Chestertown) - 7 mi - 2 violations recorded for mapped water systems
- 21617 (Centreville) - 7 mi - 7 violations recorded for mapped water systems
- 21607 (Barclay) - 7 mi
- 21628 (Crumpton) - 7 mi
- 21668 (Sudlersville) - 8 mi
- 21656 (Price) - 10 mi
- 21690 (Chestertown) - 10 mi
- 21651 (Millington) - 10 mi
- 21645 (Kennedyville) - 10 mi
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View available EPA compliance records for Town of Centreville (MD0170001) on EPA.gov.
5 of the top compounds applied across the surrounding county in USGS pesticide-use estimates appear on EPA drinking-water monitoring lists. See the agricultural pesticide-use section.
Environmental Hazards (10) MODERATE
Home & Infrastructure (8) OK
Cost & Community (9) HIGH
CPSC product recall notices
These national notices are not matched to this ZIP code or water system.
Frequently Asked Questions
Is the tap water in 21623 safe to drink?
EPA SDWIS records 5 violations since 2021 across the water systems mapped to ZIP 21623 (primary system: Town of Centreville), including 1 health-based. The violation table above shows which system each record belongs to. ZipCheckup last updated this page in July 2026. The federal source release date is unavailable, so that month is not presented as source currency.
Where does 21623's water come from?
The recorded water source for Town of Centreville, a system mapped to ZIP code 21623, is Groundwater. This system serves approximately 3,322 people.
How can I get my water tested in Church Hill?
If Town of Centreville supplies your home, contact it for its Consumer Confidence Report; otherwise contact the water utility that serves your address, or hire a certified lab for independent home water testing. The EPA recommends annual testing if you use a private well.
Is lead a concern in 21623 tap water?
The Lead and Copper Rule record selected for 21623 reports a 90th-percentile lead result of 0.005 mg/L for a water system mapped to this ZIP (record date 2024-12-31). The EPA action level is 0.015 mg/L. This result is below the EPA action level; it does not show the lead level in each home.
What is the radon risk for 21623?
21623 is mapped to a county in EPA Radon Zone 3 (low county-level radon potential; EPA recommends testing every home), located in Queen Anne's County. EPA radon zones range from Zone 1 (highest county-level potential) to Zone 3 (lowest). Testing your home is recommended regardless of zone.
How to cite this page
ZipCheckup. (2026). Church Hill, MD (21623): 1 Health-Based Violation Recorded for Mapped Water Systems. https://zipcheckup.com/report/21623/
@misc{zipcheckup-report-21623,
author = {{ZipCheckup}},
title = {{Church Hill, MD (21623): 1 Health-Based Violation Recorded for Mapped Water Systems}},
year = {2026},
url = {https://zipcheckup.com/report/21623/}
}
Page version: October 2026.
Nearby ZIP Code Reports
Water quality comparison for ZIP codes near 21623
| ZIP Code | City, State | Distance | Grade | Violations |
|---|---|---|---|---|
| 21644 | Ingleside, MD | 6.3 mi | N/A | 0 |
| 21620 | Chestertown, MD | 6.7 mi | A | 2 |
| 21617 | Centreville, MD | 6.9 mi | N/A | 7 |
| 21607 | Barclay, MD | 6.9 mi | N/A | 0 |
| 21628 | Crumpton, MD | 7.0 mi | N/A | 0 |
| 21668 | Sudlersville, MD | 7.8 mi | N/A | 0 |
| 21656 | Price, MD | 9.5 mi | N/A | 0 |
| 21690 | Chestertown, MD | 9.5 mi | N/A | 0 |
| 21651 | Millington, MD | 10.2 mi | N/A | 0 |
| 21645 | Kennedyville, MD | 10.5 mi | N/A | 0 |
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